Re: Random Numbers/Letters

>  I need to find a way to generate random numbers and
> letters together

I m no crytpo expert, but here is a php function I am toying with. The
reason I add the 200 characters is because I read somewhere that md5
'produces more random results' if it has a chunk to crunch. Maybe it is
inefficient, insecure or doesn't really add anything??

<?  // generate a random string
   function rand_string() {
   list($usec,$sec) = explode(" ", microtime());
   mt_srand($sec * $usec);
   $rand = mt_rand();
   $start = mt_rand(1,198);
   $length = mt_rand(1,198);
   // change these 400 characters often
   $text ='q54SMqa54VBPMqa54L3zxDKGzxs3zxswedWbbikplwlx
GAZX5Fy9hy7uMqn!aWE&ujNmaCVBPMqa54L3swedYeappCVBLd9c
vt9gbF!SazxsFDSagfHvt9gbFDSazMqKIF4cvxeEDh7ewSSKJTYe
dJMa5K54SWkGB3zxXCVazxsw989A5xswDS5FDS8nplavswAZXRC9
84cvfrTYeda5KJHG4Guv3321QN764r6yweswAZXR298lcvfraCxs
FDSaa5KJHG4321QN765Fz9hy7uMqnyaWEmitpl4MqvfhjcvytMzx
sw477as98j587UIJHqfrJHggrCVBLd9cjkGBMzxsw4ua52wm98j5
87UIJHqfrJHkjsNmAZzxDKGzxs7uj7ewr54AZXCVaz';
   $text = substr($text, $start, $length);
   $rand_s = md5($rand . $text);
   return $rand_s;
}